A horizontal universal joint includes a first joint member and a second joint member. The first joint member is integrally formed by a frame insertion port and a female coupling port. The second joint member is integrally formed by a frame insertion port and a male coupling port. The female coupling port of the first joint member and the male coupling port of the second joint member are removably engaged via an elastic body. Teeth rows are formed at an inner peripheral surface of the female coupling port and an outer peripheral surface of the male coupling port meshing with one another. Depending on meshing positions of both teeth rows when the male coupling port is inserted into the female coupling port, the horizontal direction where the frame insertion port of the second joint member faces relative to the frame insertion port of the first joint member is changeable.

A horizontal universal joint includes a first joint member and a second joint member. The first joint member is integrally formed by a frame insertion port and a female coupling port. The second joint member is integrally formed by a frame insertion port and a male coupling port. The female coupling port of the first joint member and the male coupling port of the second joint member are removably engaged via an elastic body. Teeth rows are formed at an inner peripheral surface of the female coupling port and an outer peripheral surface of the male coupling port meshing with one another. Depending on meshing positions of both teeth rows when the male coupling port is inserted into the female coupling port, the horizontal direction where the frame insertion port of the second joint member faces relative to the frame insertion port of the first joint member is changeable.

Connectors for assembling off-the-shelf framework such as pipes and tubes. The connectors include parts that can have puzzle-shaped ends for locking the components together, and when connected, the connectors form various cavities that may include friction-inducing components disposed in the cavities to render the framework stationary. The cavities may be sized to accommodate different sizes of framework.

Connectors for assembling off-the-shelf framework such as pipes and tubes. The connectors include parts that can have puzzle-shaped ends for locking the components together, and when connected, the connectors form various cavities that may include friction-inducing components disposed in the cavities to render the framework stationary. The cavities may be sized to accommodate different sizes of framework.

A rack assembly has two support frames and at least one shelf that are secured to the support frames by connecting assemblies. Each connecting assembly comprises a well secured to a medial surface of each vertical tube of the support frame, and a hook that extends from each end of each shelf, with each hook having an opening extending therethrough. The connecting assembly also includes a connector that is seated inside each well, each connector having a top plate that has an elongated opening, the connector also having a body that is sized and configured to fit inside a well, the body defining two wings with a space between the wings, and wherein each wing has a bump positioned in the center of the inner surface of each wing that faces the space. Each hook is inserted through the elongated opening of a corresponding connector with the bump on each wing fitted inside the opening of the hook to retain the hook inside the body of the connector.

A rack assembly has two support frames and at least one shelf that are secured to the support frames by connecting assemblies. Each connecting assembly comprises a well secured to a medial surface of each vertical tube of the support frame, and a hook that extends from each end of each shelf, with each hook having an opening extending therethrough. The connecting assembly also includes a connector that is seated inside each well, each connector having a top plate that has an elongated opening, the connector also having a body that is sized and configured to fit inside a well, the body defining two wings with a space between the wings, and wherein each wing has a bump positioned in the center of the inner surface of each wing that faces the space. Each hook is inserted through the elongated opening of a corresponding connector with the bump on each wing fitted inside the opening of the hook to retain the hook inside the body of the connector.

A goods presentation system includes a pedestal, a wall unit which is releasably secured to the pedestal, and a securing device for securing the wall unit to the pedestal. The securing device is fitted on the pedestal and is secured thereto. The pedestal and the wall unit form an L-shaped cross section or a T-shaped cross section when viewed from a side. At least one base is securable to the wall unit.

A goods presentation system includes a pedestal, a wall unit which is releasably secured to the pedestal, and a securing device for securing the wall unit to the pedestal. The securing device is fitted on the pedestal and is secured thereto. The pedestal and the wall unit form an L-shaped cross section or a T-shaped cross section when viewed from a side. At least one base is securable to the wall unit.

A crossmember (3) comprises an elongate rod portion (31) and two latching claws (32). The rod portion (31) has a central longitudinal axis, a first longitudinal end and a second longitudinal end substantially opposite the first longitudinal end. The first latching claw (32) is arranged at the first longitudinal end of the rod portion (31) and the second latching claw (32) is arranged at the second longitudinal end of the rod portion (31). The first latching claw (32) and the second latching claw (32) each comprise a gripping portion (321) shaped to correspond to a rod-shaped element (22, 31, 52) and are designed to be mounted on the rod-shaped element (22, 31, 52) without tools. The gripping portion (321) of the first latching claw (32) is offset from the gripping portion (321) of the second latching claw (32) with respect to the central longitudinal axis of the rod portion (31).

A crossmember (3) comprises an elongate rod portion (31) and two latching claws (32). The rod portion (31) has a central longitudinal axis, a first longitudinal end and a second longitudinal end substantially opposite the first longitudinal end. The first latching claw (32) is arranged at the first longitudinal end of the rod portion (31) and the second latching claw (32) is arranged at the second longitudinal end of the rod portion (31). The first latching claw (32) and the second latching claw (32) each comprise a gripping portion (321) shaped to correspond to a rod-shaped element (22, 31, 52) and are designed to be mounted on the rod-shaped element (22, 31, 52) without tools. The gripping portion (321) of the first latching claw (32) is offset from the gripping portion (321) of the second latching claw (32) with respect to the central longitudinal axis of the rod portion (31).